Environmental Science is the study of interaction among physical, chemical and biological components of the environment. It is an interdisciplinary science overlapping the categories in natural sciences, Engineering sciences and social sciences. Environmental science focuses on pollution and degradation of the environment related to human activities and their impact on biodiversity and sustainability. As an interdisciplinary field, environmental science also applies knowledge from economics, law and social sciences. It can be applied to cyberspace environment also. Physics is used to understand the flux of material and energy interaction and construct mathematical models of environmental phenomena. Chemistry is applied to understand the molecular interactions among natural systems. Biology is fundamental to describing the effects within the plant and animal kingdoms.

Environmental science encompasses issues such as climate change, conservation, biodiversity, groundwater and soil contamination, use of natural resources, waste management, sustainable development, air pollution and noise pollution.

The post graduate programme of environmental Science is a multidisciplinary degree based on the physical sciences and focuses on environment issues relating to air, water, land and energy, including air and water pollution, land salinisation, climate change and the greenhouse effect. Graduates are in demand and work in a variety of areas, including government agencies and environmental consulting companies.